@kaihengfeng
I gave latest mainline a try on my Fedora, installed through copr according to
this doc: https://fedoraproject.org/wiki/Kernel_Vanilla_Repositories
It's kernel 6.3 instead of 6.2, but I would assume it contains changes from 6.2.
No luck, still same symptoms.
# uname -a
Linux lrob.local 6.3.0-0.rc0.20230222gt5b7c4cab.201.vanilla.fc37.x86_64 #1 SMP
PREEMPT_DYNAMIC Wed Feb 22 05:16:05 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
At idle:
# cat /proc/loadavg
2.66 3.05 2.87 3/2147 27819
Processes on top of CPU utilization:
1044 root 20 0 0 0 0 D 18.2 0.0 0:07.52
[kworker/u32:8+USBC000:00-con0]
19136 root 20 0 0 0 0 D 17.5 0.0 0:02.22
[kworker/0:0+events]
230 root 20 0 0 0 0 R 15.2 0.0 1:04.60
[kworker/0:3+kacpi_notify]
Also the issue is now occurring even when the laptop's battery is 100% charged
as it is currently.
On a side note, a Thunderbolt docking station from Dell, which also charges the
laptop, shows the exact same symptoms as the embedded charger.
All the best.
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https://bugs.launchpad.net/bugs/1987829
Title:
LG Gram 12gen high CPU use when USB-C/TB is in use
Status in linux package in Ubuntu:
Confirmed
Status in linux package in Fedora:
New
Bug description:
LG Gram laptop 17Z90Q with a Core i7-1260P CPU.
Whenever an external monitor is connected to USB-C/Thunderbolt 4,
average load goes above 3.0 and the machine is getting very hot.
Output from top -H shows a lot of kworker CPU usage:
top - 11:45:06 up 33 min, 2 users, load average: 3,30, 3,08, 2,79
Threads: 1442 total, 2 running, 1440 sleeping, 0 stopped, 0 zombie
%Cpu(s): 0,1 us, 3,7 sy, 0,0 ni, 96,1 id, 0,0 wa, 0,0 hi, 0,1 si, 0,0
st
MiB Mem : 15684,6 total, 8510,2 free, 2580,8 used, 4593,6 buff/cache
MiB Swap: 3815,0 total, 3815,0 free, 0,0 used. 11326,9 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ WCHAN
COMMAND
7766 root 20 0 0 0 0 R 19,8 0,0 0:56.05
worker_th+ kworker/0:2-events
196 root 20 0 0 0 0 D 15,8 0,0 1:18.12
ec_guard kworker/u32:2+USBC000:00-con0
10237 root 20 0 0 0 0 I 12,9 0,0 0:26.44
worker_th+ kworker/0:0-events
1027 root 20 0 0 0 0 I 6,6 0,0 0:43.30
worker_th+ kworker/1:3-events
10971 root 20 0 0 0 0 I 4,0 0,0 0:00.20
worker_th+ kworker/15:0-events
175 root 20 0 0 0 0 I 2,3 0,0 0:03.24
worker_th+ kworker/11:1-events
2410 root 20 0 0 0 0 I 1,7 0,0 0:05.49
worker_th+ kworker/9:3-events
Perf shows a lot of time spent inside
handle_irq_event/acpi_ev_gpe_detect/acpi_hw_gpe_read.
Additionally, kernel log is getting spammed with these lines every 4
seconds (but also without any USB-C device attached):
[ 223.514304] ACPI Error: No handler for Region [XIN1] (00000000f2ad4f1f)
[UserDefinedRegion] (20210730/evregion-130)
[ 223.514323] ACPI Error: Region UserDefinedRegion (ID=143) has no handler
(20210730/exfldio-261)
[ 223.514337]
Initialized Local Variables for Method [_TMP]:
[ 223.514339] Local0: 0000000021495082 <Obj> Integer
0000000000000034
[ 223.514349] No Arguments are initialized for method [_TMP]
[ 223.514354] ACPI Error: Aborting method
\_SB.PC00.LPCB.LGEC.SEN2._TMP due to previous error (AE_NOT_EXIST)
(20210730/psparse-529)
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: linux-image-5.15.0-46-generic 5.15.0-46.49
ProcVersionSignature: Ubuntu 5.15.0-46.49-generic 5.15.39
Uname: Linux 5.15.0-46-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: me 1678 F.... pulseaudio
/dev/snd/controlC1: me 1678 F.... pulseaudio
CRDA: N/A
CasperMD5CheckResult: pass
Date: Fri Aug 26 11:57:05 2022
InstallationDate: Installed on 2022-08-25 (1 days ago)
InstallationMedia: Ubuntu 22.04.1 LTS "Jammy Jellyfish" - Release amd64
(20220809.1)
MachineType: LG Electronics 17Z90Q-G.AA78N
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-46-generic
root=UUID=e2f96916-a67c-432e-b687-730071271216 ro quiet splash vt.handoff=7
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-5.15.0-46-generic N/A
linux-backports-modules-5.15.0-46-generic N/A
linux-firmware 20220329.git681281e4-0ubuntu3.4
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/06/2022
dmi.bios.release: 0.1
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: A1ZG0380 X64
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 17Z90Q
dmi.board.vendor: LG Electronics
dmi.board.version: FAB1
dmi.chassis.asset.tag: Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LG Electronics
dmi.chassis.version: 0.1
dmi.ec.firmware.release: 33.0
dmi.modalias:
dmi:bvnPhoenixTechnologiesLtd.:bvrA1ZG0380X64:bd07/06/2022:br0.1:efr33.0:svnLGElectronics:pn17Z90Q-G.AA78N:pvr0.1:rvnLGElectronics:rn17Z90Q:rvrFAB1:cvnLGElectronics:ct10:cvr0.1:skuEVO:
dmi.product.family: LG gram PC
dmi.product.name: 17Z90Q-G.AA78N
dmi.product.sku: EVO
dmi.product.version: 0.1
dmi.sys.vendor: LG Electronics
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